NJM431D Equivalent & Substitute Parts

Part Overview

The NJM431D is a shunt voltage reference integrated circuit manufactured by Nisshinbo Micro Devices Inc. It functions as an adjustable precision voltage reference with a fixed output voltage of 2.495V and maximum output capability of 36V at 100mA. The device is designed for power management applications requiring stable voltage references with tight tolerance specifications. The NJM431D is currently in active product status with substantial inventory availability (19,147 pieces). Substitute parts are identified when equivalent electrical and mechanical parameters are required due to supply constraints, design flexibility, or component lifecycle management.

Substiute Parts

NJM431D

Nisshinbo Micro Devices Inc.In Stock: 19251NJM431D Datasheet

Current PartRFQ

TL431IP

onsemiIn Stock: 4351TL431IP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NJM431D is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Reference type must be shunt
• Output type must be adjustable
• Voltage output range: minimum 2.495V, maximum 36V
• Current output capacity: 100mA
• Tolerance specification: ±2.2%
• Cathode current: 1mA
• Operating temperature range: -40°C to 85°C

Mechanical Equivalence Criteria:

• Mounting type: Through hole
• Package type: 8-DIP with 0.300" (7.62mm) pitch
• Pin configuration compatibility

The TL431IP from onsemi meets all electrical and mechanical equivalence criteria. However, product status and compliance certifications differ and must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

NJM431D Selection Criteria:

• Primary choice for new designs and applications requiring active product status
• Mandatory for applications subject to RoHS compliance requirements
• Recommended when long-term supply continuity is required
• Current inventory status: 19,147 pieces available

TL431IP Selection Criteria:

• Electrical and mechanical parameters are equivalent to NJM431D
• Product status is obsolete; use only when existing designs require component-level compatibility
• RoHS non-compliant; not suitable for applications with RoHS mandates
• Limited inventory: 4,300 pieces available
• Temperature coefficient specification (50ppm/°C typical) is provided for TL431IP but not specified for NJM431D

Compliance Considerations: The NJM431D is RoHS compliant and REACH unaffected. The TL431IP is RoHS non-compliant. Applications subject to environmental or regulatory compliance requirements must use the NJM431D or equivalent RoHS-compliant alternatives.

Frequently Asked Questions (FAQ)

Q: Can TL431IP be used as a direct replacement for NJM431D?

A: TL431IP meets all specified electrical and mechanical parameters. However, the TL431IP is obsolete and RoHS non-compliant. Use TL431IP only in legacy designs where component-level compatibility is required. For new designs, use NJM431D.

Q: What is the difference between 8-DIP and 8-PDIP packaging?

A: Both designations refer to 8-pin dual inline packages with 0.300" (7.62mm) pitch. The packages are mechanically and electrically compatible. PDIP indicates plastic DIP, which is the standard through-hole package type.

Q: Are there other substitute parts available for NJM431D?

A: The TL431IP has documented substitutes including TL431AIP, TL431CP, TL431BCP, LM431AIZ/NOPB, and TL431BIP. These alternatives share the same base product number (TL431) and electrical specifications. Verify RoHS compliance and product status for each alternative before selection.

Q: What does "obsolete" product status mean for TL431IP?

A: Obsolete status indicates the manufacturer has discontinued production. Existing inventory may be available through distributors, but long-term supply cannot be guaranteed. New designs should not specify obsolete components.

Q: Why is RoHS compliance important for component selection?

A: RoHS (Restriction of Hazardous Substances) compliance is mandatory for products sold in the European Union and many other markets. Non-compliant components cannot be used in regulated applications. The NJM431D is RoHS compliant; TL431IP is not.

Q: What is the significance of the temperature coefficient specification?

A: Temperature coefficient (50ppm/°C for TL431IP) indicates how the output voltage changes with temperature. The NJM431D does not specify this parameter in the provided data. Applications requiring precise temperature stability should evaluate this specification during design validation.